DE4217034C2 - Mold system with a press containing several injection pistons - Google Patents
Mold system with a press containing several injection pistonsInfo
- Publication number
- DE4217034C2 DE4217034C2 DE4217034A DE4217034A DE4217034C2 DE 4217034 C2 DE4217034 C2 DE 4217034C2 DE 4217034 A DE4217034 A DE 4217034A DE 4217034 A DE4217034 A DE 4217034A DE 4217034 C2 DE4217034 C2 DE 4217034C2
- Authority
- DE
- Germany
- Prior art keywords
- guide rails
- injection
- mold
- press
- carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67126—Apparatus for sealing, encapsulating, glassing, decapsulating or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14008—Inserting articles into the mould
- B29C45/14016—Intermittently feeding endless articles, e.g. transfer films, to the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
- B29C45/14655—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components connected to or mounted on a carrier, e.g. lead frame
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Die Erfindung betrifft ein Mold-System mit einer mehrere Spritzkolben enthaltenden Presse gemäß Oberbegriff des An spruchs 1.The invention relates to a mold system with one Press containing injection plunger according to the preamble of the An saying 1.
Zur Herstellung der Gehäuse von integrierten Halbleiter schaltungen sind Pressen mit mehreren Spritzkolben bekannt.For the manufacture of integrated semiconductor packages circuits are presses with several injection pistons known.
Auf einem gemeinsamen Trägerstreifen aus Metall sind mehrere Halbleiterelemente oder Halbleiterschaltungen angeordnet, die eingelegt in ein Werkzeug einer Presse mit Kunststoff umhüllt werden können. Das Werkzeug bildet die Spritzform, in deren Formnestern die Halbleiterchips eines Trägerstreifens beim Spritzvorgang einliegen. Zum Umhüllen der Halbleiterchips werden Kunststoffe, vorzugsweise Duro plaste verwendet.On a common metal carrier strip are several semiconductor elements or semiconductor circuits arranged, which is inserted into a tool with a press Plastic can be wrapped. The tool forms the Injection mold, in the mold nests of the semiconductor chips Insert the carrier strip during the spraying process. For wrapping the semiconductor chips are plastics, preferably Duro plastic used.
Aus der US-PS 43 47 211 ist eine Presse bekannt, bei der jedem Formnest ein Spritzkolben zugeordnet ist. Der Tran sport der Trägerstreifen zum Spritzwerkzeug der Presse und von dort zu einer Entnahmestation erfolgt bei den bekann ten Mold-Systemen mittels aufwendiger Handlingeinrichtungen, die die einzelnen Trägerstreifen in das geöffnete Werkzeug einlegen und dort wieder nach dem Spritzvorgang entnehmen.A press is known from US-PS 43 47 211, in which a plunger is assigned to each mold cavity. The Tran the carrier strip to the injection mold of the press and from there to a removal station takes place at the known ten mold systems by means of complex Handling devices that the individual carrier strips in insert the opened tool and there again after the Remove spraying process.
Aus der DE 33 36 173 C2 ist ebenfalls eine Presse mit meh reren Spritzkolben zur gleichzeitigen Herstellung mehrerer Kunststoffpreßteile bekannt, bei der jedem Spritzkolben je weils zwei Formnester bzw. zu umhüllende Halbleiterelemente zugeordnet sind. Das dort beschriebene Pressensystem wird in Fachkreisen auch als Multiplunger-System bezeichnet.From DE 33 36 173 C2 is also a press with meh Other injection pistons for the simultaneous production of several Plastic pressed parts known, each with the plunger because two mold cavities or semiconductor elements to be encased assigned. The press system described there is also known as a multiplunger system in specialist circles.
Weiterhin ist aus der DE 29 30 760 A1 ein Verfahren zum Um hüllen von Halbleiterbauelementen mittels Spritzgießens bekannt, bei dem die auf einem Trägerband befindlichen Halbleiterbauelemente mit dem Trägerband in das Spritzwerk zeug eingelegt werden.Furthermore, from DE 29 30 760 A1 a method for Um enveloping semiconductor components by means of injection molding known, in which those located on a carrier tape Semiconductor components with the carrier tape in the injection molding stuff can be inserted.
Der Erfindung liegt die Aufgabe zugrunde, ein Mold System oder eingangs genannten Gattung derart weiterzubilden, daß der Transport der auf einem Trägerstreifen befindlichen Halbleiterschaltungen, die im Spritzwerkzeug der Presse mit einem Kunststoff umhüllt werden sollen, auf möglichst ein fache Weise realisiert werden kann.The invention has for its object a mold system or the type mentioned at the outset in such a way that the transport of those located on a carrier strip Semiconductor circuits used in the injection mold of the press should be encased in a plastic, if possible simple way can be realized.
Die Lösung dieser Aufgabe wird durch die im Anspruch 1 an gegebenen Merkmale erhalten. Die Transporteinrichtung be steht im wesentlichen aus zwei im Abstand angeordneten Füh rungsschienen, die an den Längsrändern der Trägerstreifen angreifen. Die Führungsschienen können zu diesem Zweck mit Längsnuten versehen sein, in denen die Längsränder der Trä gerstreifen einliegen. Die Trägerstreifen verbleiben auch während des Spritzvorganges zwischen den Führungsschienen, so daß nach dem Spritzvorgang und nach dem Öffnen des Spritzwerkzeugs der Weitertransport der Trägerstreifen ohne besondere Zwischenschritte sofort erfolgen kann.The solution to this problem is given by the in claim 1 given given characteristics. The transport device be essentially consists of two spaced feet approximately on the longitudinal edges of the carrier strips attack. The guide rails can be used for this purpose Longitudinal grooves are provided in which the longitudinal edges of the Trä lay in the strips. The carrier strips also remain during the spraying process between the guide rails, so that after the spraying process and after opening the Injection mold the further transport of the carrier strips without special intermediate steps can take place immediately.
Das Spritzwerkzeug besitzt vorzugsweise an die Form der Führungsschienen angepaßte Aussparungen, in denen die Füh rungsschienen des Spritzvorganges einliegen. The injection mold preferably has the shape of the Guide rails adapted recesses in which the Füh insert rails of the spraying process.
In den Führungsschienen liegen hintereinander mehrere Trä gerstreifen ein, die von einer Vorschubeinrichtung getaktet werden, d. h. die Trägerstreifen werden nacheinander in die Spritzposition im Bereich des Spritzwerkzeuges ge bracht und danach entsprechend schrittweise weitertransportiert.There are several doors in a row in the guide rails a strip that is clocked by a feed device become, d. H. the carrier strips are successively in the spray position in the area of the injection mold ge brings and then gradually transported on.
Die Führungsschienen können eine horizontale Führungsebene oder eine vertikale Führungsebene bilden, wobei dann auch die Trennebene des Spritzwerkzeuges entsprechend horizon tal oder vertikal ausgerichtet ist.The guide rails can have a horizontal guide level or form a vertical management level, then also the parting plane of the injection mold according to the horizon valley or vertically aligned.
Die Position der Führungsschienen bleibt während des ge samten Transport-Spritzvorganges vorzugsweise unverändert, wodurch sich ein sehr einfacher Gesamtaufbau und eine hohe Bearbeitungsgeschwindigkeit realisieren lassen.The position of the guide rails remains during the ge entire transport spraying process preferably unchanged, which results in a very simple overall structure and a high Let processing speed be realized.
Die Anspritzöffnungen der zugeordneten Spritzkolben können sich an der oberen oder unteren Flachseite der Träger streifen befinden. Anstelle des Anspritzens auf den Trä gerstreifen kann auch direkt auf das Gehäuse der Halblei terelemente angespritzt werden. Dies hat den Vorteil, daß im Randbereich der Trägerstreifen keine Aussparungen oder sonstige besondere Maßnahmen im Bereich der Führungsschie nen vorgesehen werden müssen, daß das Anspritzen auf den Trägerstreifen im Bereich zwischen den gegenüberliegenden Führungsschienen erfolgt. Das Anspritzen auf den Träger streifen hat außerdem den Vorteil, daß ein flashfreies Um hüllen (kein seitliches Abfließen von Kunststoffmaterial) erreicht wird, so daß auf eine Formreinigung nach jedem Arbeitszyklus weitgehend verzichtet werden kann.The injection openings of the associated injection pistons can on the top or bottom flat side of the straps stripes. Instead of splashing on the Trä The stripe can also be applied directly to the housing of the half lead ter elements are injected. This has the advantage that no cutouts or in the edge area of the carrier strips other special measures in the field of command shooting NEN must be provided that the injection on the Carrier strips in the area between the opposite Guide rails are made. The splash on the carrier strip also has the advantage that a flash-free Um cover (no plastic material flows off to the side) is achieved so that a mold cleaning after each Work cycle can be largely dispensed with.
Die Erfindung wird nachfolgend anhand eines in der Zeich nung dargestellten Ausführungsbeispieles näher erläutert.The invention is based on a in the drawing voltage illustrated embodiment explained in more detail.
Es zeigen:Show it:
Fig. 1 die Vorderansicht eines Mold-Systems mit horizon taler Führungsebene für die Trägerstreifen. Fig. 1 is a front view of a mold system with a horizontal guide plane for the carrier strips.
Die Längsränder 23, 24 des Trägerstreifens 8 liegen gemäß Fig. 6 in Längsnuten 25, 26 der Führungsschienen 4, 5 ein.The longitudinal edges 23 , 24 of the carrier strip 8 lie according to FIG. 6 in the longitudinal grooves 25 , 26 of the guide rails 4 , 5 .
Weitere Darstellungen enthalten die Fig. 2-5 und 7.Further illustrations include FIGS. 2-5 and 7.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4217034A DE4217034C2 (en) | 1992-05-22 | 1992-05-22 | Mold system with a press containing several injection pistons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4217034A DE4217034C2 (en) | 1992-05-22 | 1992-05-22 | Mold system with a press containing several injection pistons |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4217034A1 DE4217034A1 (en) | 1993-11-25 |
DE4217034C2 true DE4217034C2 (en) | 1996-02-08 |
Family
ID=6459534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4217034A Expired - Fee Related DE4217034C2 (en) | 1992-05-22 | 1992-05-22 | Mold system with a press containing several injection pistons |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4217034C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29805701U1 (en) | 1998-03-28 | 1998-06-10 | Battenfeld Gmbh, 58540 Meinerzhagen | Injection molding machine for the production of insert parts overmolded with plastic |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4432017C2 (en) * | 1994-09-08 | 1998-02-05 | Techno Finish Gmbh | Method and device for making dials |
DE19918776A1 (en) * | 1999-04-24 | 2000-10-26 | Mann & Hummel Filter | Molding tool for the production of several injection molded components |
DE102006041415B4 (en) | 2005-10-13 | 2021-07-08 | Engel Austria Gmbh | Device for molding plastic parts onto a workpiece |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2930760A1 (en) * | 1979-07-28 | 1981-02-12 | Itt Ind Gmbh Deutsche | METHOD FOR COATING SEMICONDUCTOR COMPONENTS BY INJECTION MOLDING |
JPS5850582B2 (en) * | 1979-08-24 | 1983-11-11 | 道男 長田 | Semiconductor encapsulation molding method and mold equipment |
DE3336173C2 (en) * | 1983-10-05 | 1985-08-29 | Maschinenfabrik Lauffer GmbH & Co KG, 7240 Horb | Press with several injection pistons for the simultaneous production of several plastic molded parts |
-
1992
- 1992-05-22 DE DE4217034A patent/DE4217034C2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29805701U1 (en) | 1998-03-28 | 1998-06-10 | Battenfeld Gmbh, 58540 Meinerzhagen | Injection molding machine for the production of insert parts overmolded with plastic |
Also Published As
Publication number | Publication date |
---|---|
DE4217034A1 (en) | 1993-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |